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TM 55-3805-261-14
CHAPTER 7
RAIL TRANSPORTABILITY GUIDANCE
Section I. GENERAL
and unload the vehicle.
7-1. Scope
This chapter provides rail transportability guidance for
7-2. Maximum Utili zation of Railcars
movement of the model 130G grader.
It covers
Additional cargo as approved by the activity offering the
technical and physical characteristics as well as safety
items for transport may be transported with the vehicles.
considerations.
The chapter also prescribes the
materials and guidance required to prepare, load, tie
down,
Section II. TRANSPORT ON CONUS RAILWAYS
pose railcar. Table 7-1 is the bill of materials for the
7-3. General
blocking and tiedown of the model 130G grader. Table
The transportability guidance contained in this section is
7-2 provides data for the application of materials
applicable when the model 130G grader is transported
required to restrain the vehicle.
on CONUS railways. Figure 7-1 shows the model 130G
grader loaded on a wooden deck, general-pur-
Table 7-1. Bill of Materials for Blocking and Tiedown of the Model 130G Grader on a General Purpose Flatcar
Approximate
Approximate
Item
Description
Quantity
Lumber
Douglas-fir, or comparable, straight-grain. free from material defects; Fed Spec MM-L-751C:
2- x 4-inch
22 linear feet
4- x 4-inch
2 linear feet
1- x 8-inch
24 linear feet
4- x 8-inch
8 linear feet
Nails
Common, steel; flathead; bright or cement-coated; para 3.6.11.2, Fed Spec FF-N-105B:
40d
160
Wire rope
6 x 19, IWRC; improved plow steel: preformed. regular-lay; table X, Fed Spec RR-W-410:
5/8-inch
60 feet
Clamps
Wire rope, U-bolt clips, saddled, single-grip, steel, Crosby heavy-duty, or equal; MIL-STD-16842: 5/8-
inch
24
Thimbles
Standard, open-type: 5/8-inch
8
Table 7-2. Application of Materials for Blocking and Tiedown of the Model 130G Grader on a General Purpose Flatcar
Item
No. Required
Application
A
Brake-wheel clearance. Minimum clearance required is 6 inches above, in back of, and on both sides of and 4
inches underneath wheel.
B
6
Side blocks. Each to consist of 4- x 8- x 1 -inch lumber shaped to pattern B. Locate one inside of each wheel.
Secure to car floor with five 40d nails in heel and one 40d nail in each side of block.
C
16
Chock blocks. Each to consist of a piece of 1- x 8-inch lumber cut to dimensions as shown, and one face
plate of 2- x 4- x 16-inch lumber. Locate completed blocks against wheels in the pattern depicted. Secure
each to car floor with five 40d nails in each heel and one 40d nail in each side of block.
D
2
Bearing pieces. 4. x 4- x 12-inch lumber. Locate under scraper blade, each side, and secure each to car floor
with three 40d nails.
8
Thimble, open-type, 5/8-inch. Place one at bottom of each stake pocket, and one each on front and rear
tiedowns of grader
7-1

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